Internal-combustion engine.



A. K. LANDSMANN iz F. DIPPON. mrfmwm. ooMusTmN ENGINE. PPPLIGAYMON FILED MAB.. 24,1313. 1,122,773. Patented Dec. 29, 1914.

2 SHEETS-SHEET 1.

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UNITED STATES PATENT OFFICE.

ARTHUR K. LANDSMANN AND FRITZ DIPPON, OF ST. LOUIS, MISSOURI.

INTERNAL-COMBUSTION ENGINE.

Specification of Letters Patent.

Patented Dec. 29, 191 l.

To all Uiom it muy fruncern Be it known that we, ARTHUR K. LANDs- MANN and Farm Dirrox, subject-s of thel Emperor of Austria-1Iungary, residing at St. Louis. in the State of Missouri, have invented Certain new and useful Improvements in Internal-tonibustion lingines, of which the following is a' specification.

This invention relates to improvements in internal-combustion engines and the objects of the invention are to compress the explosive charge into a valve member which controls the intake and exhaust ports; the provision of a valve which in distinction to the lift" or puppet'i valvet does not operate against the force of Compression; the provision of a valve in which the necessity for periodical grinding and adjustment, found necessary with the puppet type valve, is eliminated; the provision of a valve which is noiseless in operation; the provision of a valve'whieh, in distinction to the puppet" valve.y is not seated in the path of the intatte and exhaust ports and, therefore, otl'crs no obstruction to the rapid intake and exhaust of the explosive mixture; the provision of a valve which can be operated with extreme ease despite the highest degree of compression; and the provision of a valve in which loss of'eompression is rendered substantially impossible.

(lther objects and advantages ma)r be noted on consideration of the following portions of this specification and the appended claims.

lcferring to the accompanying drawing, in which like numerals rcfrr to like parts throughout the several views, Figure 1 a sectional elevation depicting the cylinder of an engine equipped with our invention; Fig. i? a top plan view of the devices shown in Fig. 1. a portion of the` cylinder-head being removed; Figs. 3 and 4 detail views of certain of the parts shown in Figs. lY and 2 which shall hereinafterbe more particularly described: and Fig. a modification of certain of the features of thepreferred form of our invention.

Numeral 1 indicates an engine cylinder provided with intake and exhaust ports El, E2 and inclosing a piston 3 connected with a` (frank-shaft -li upon which is fixed a pinion 5 meshing with a gear 6, the latter adapted to complete one revolution for every' two revolutions of pinion 5. Gear is keyed being thus drawn into upon a shaft T which carries an annular member 8 provided with a cam-groove 9 having an annular portion .r and in Laid groove is disposed a rolle.I l() secured to an arm of bell-crank lever 1l whose other arni connected with a rod l2` ltods lll. 12, are slidably mounted in the wall. :if the cylinder and engage opposite. s ol' a laterally movabh` ringvalve 1LT ope. 'ating in a compartment ll which communiottes vv ilh piston chamber 15 by means of au aperV ture 16.

Valve 1li comprises a solid annular mein-y ber 1T, east-iron split-rings 18 and vcrti cally extensible sleeves i9 having bent-led llangcsI 2l?. Vlt will be noted that the alg -s of member 1T are beveled to allori'. a seat for the beveled edge of rings 1Q; that flanges 2.0 project over said rings; and that the latter are normally of smaller circumference than member 17, but are expanded, through the agency of their split feature.y to substantially the same diameter as said member when flanges 20 are forced inw a rdly by the securing in place of cylinder head 21.

One of the important features of valve 13 lies in the pro.'ision of means for preventing loss of compression and this desideratum is attained by the use of splitaings 18. which as will be appreciated, gradually contract in response to the wearing a way of flanges 20, whereby the latter are :constantly retained in close, engagement with the upptr and lower walls of con'ipartnu-nt 14.

n added valuable feature ol' valve 13 lies in the beveliug of flanges Q0, whereby should leakage of cmnpression occur between said llanges and the walls of coinpartment 14- the danger of said {ltr-ges being forced away from said walls is ieduced to the minimum in view of the small surface which would be subjected to the maxi mum pressure of the escaping gas.

The modification shown in Fig. 5 simply consists in stjuaring the edges of member 17 and seating therein a plurality of small springs 18" in lieu of rings .18, said springs being compressed by flanges Q0.

ln operation, partial revolution of shaft lY causes valve to move into register with intake port Q simultaneously with the deA scent of piston The explosive mixture eha;.iber 15 is next compressed by the upward stroke of said piston into valve 1S which, during said stroke, remains stationary and out of register with both the intake and exhaust ports due to the travel of roller in the annular portion 9* of groove 9. When piston 3 has reached the limit of its upward travel the charge is exploded by spark-plug 22 and the resulting expansion of the gas serves to mechanism may depress said pistonwhose next u ward stroke coincides with the registration of valve 13 with exhaust port 2.

Theoperation of the valve actuating be more particularly described as follows. Referring to Fig. 1 it will be noted that valve 13 is out of register with both the intake and exhaust-ports; that piston 3 is on the compression stroke; and that during said stroke the said valve remains stationary due to the travel of roller 10 in the annular or nonactuating portion 9" of the cam-groove 9, as described in the preceding paragraph. At the comletion oil said compression stroke the charge 1s exploded through the agency of spar plug 22 and piston 3 is driven downwardly. coincident with the termination of said downward movement' of piston 3 roller 10 enters that portion of groove 9 designated by numeral 9b which, as diagrammatically shown, is formed so as to lift 'said roller, thus actuating lever 11, forcing inwardly rod 12 and placing valve 13 in communication with exhaust-port 2a. Upon the substantial completion of the subsequent upward or gas-expelling stroke of piston 3 valve` 13 is instantly cut ofi' from port 2'* and simultaneously placed in communication with intake port Q by the entrance of roller 10 into that portion 9 of groove 9 which, as shown, is inwardlycurved (at its commencement) toward the axis of member 8 and thus serves to depress said roller which results in moving outwardly arm 11 and rod 1:2. The neutral position of valve 13 shown in Figsfl and 4 is assumed when roller 10 is slightly lifted on entering the before-described portion 9a or" groove 9 and it will be appreciated that but very slight movement of said valve required to open one of said ports and close the other.

What we claim as new and desire to secure by patent is 1. An internal combustion engine comprising'a cylinder, intake and exhaust ports therein, av piston, a member controllingr the communication of said ports with said cylindergv and means for automatically moving said member into and out of register with said ports, said member comprising oppositely extensible sleeves, and devices for Iautomatically extending said sleeves in compensation for the wear thereof.

v2. An internal-combustion engine comprising a cylinder, intake and exhaust ports therein, a piston, a member controlling the communication of said ports with said cylindex', and means for automatically moving said member into and out of. register with.

said ports, said means adapted to maintain said member out of register with said ports, during compression of said charge, said' member comprising oppositely extensible sleeves, and devices for automatically extending said sleeves in, compensation for the wear thereof.

3. An internal-combustion prising a cylinder, intake and exhaust ports therein, a piston, a compartment between said poi-ts and piston, a member disposed in said compartment adapted to contain the charge compressed b said piston, and means for automatical y movin said member into and out of register wit said ports, said member comprising oppositely extensible sleeves adapted to engage opposite wallsof said compartment, and devices for automatically extending said sleeves in compensation for the wear thereof.

4. An internal-combustion engine comprising a cylinder, intake and exhaust ports therein, a piston, a. compartment between said ports and piston, a member dis osed in said compartment ad: ted'to contain the charge compressed by said) piston, and means for automatically moving said member into and out of register with said ports, said means adapted to maintain Said member out of register with said ports during compression of said charge, said member comprising oppositely extensible sleeves adapted to engage opposite walls of said compartment, and devices for automatically extending said sleeves in compensation for the wear thereof.

5. An internal-coinbustion engine cornprising a cylinder, intake and exhaust ports therein. a piston, a compartment between said ports and piston, a member disposed in said compartment adapted to contain the charge compressed by said piston, and means for automaticallyY moving said inembcr into and out of register with said ports, said member comprising extensible sleeves having beveled flanges adapted to engage opposite walls of said compartment, and devices For automatically extending said sleeves in compensation for the Wear of said flanges..

6. An internal-combustion engine comprising a cylinder, intake and exhaust ports therein, a piston, a compartment between said ports and piston, a member disposed in said compartment adapted to contain the charge compressed by said piston, and means for automatically movin said member into and out of register wit said ports, said means adapted to maintain said member out of register with said ports during compression of said charge, said member comprising extensible sleeves having beveled flanges adapted to enga e opposite walls of said compartment, an devices for autoengine com- 'JQ-therein, a. piston, a compartment between 'matically extending said sleeves in comthereimapi'ston, `a member controlling said ports adapted .to reciprocate in .a planeti-ans'versetothe'axis-'of said cylinder', and

means for automatically moving said member into ont of register withsaid ports, said memben comprising oA positely' extensible sleeves, and devices rautoinatically the Wear thereof. A

-8. An internal-combustion engine comprising a cylinder, intake Aand exhaust-ports therein, a piston, a member controlling said ports adapted to reciprocate' in a plane' transverse to the. axis-of said cylinder,` and means for automatically-moving said inembei' into and out of register with said ports, said means adapted to maintain said incinbei out'of register ivitlh said ports during compression of said charge, said 'member comprising opposite'ly extensible sleeves, and devices for iintomatically extending ext/ending said sleeves in compensation for -said vsleeves in compensation for the' wear thereof.

9. Aninternal-combustion engine compris'inga cylinder, intake. and'exhaust-ports vsaidports andpiston, a member disposed in saidv compartment -adapt'ed'to reciprocate in ai plei'ije` transverse to the axisof said cylinf.

. der', and means 'for automatically-movingsaid member'into and out bfregisterivith `said ports, said member' comprising .Qp'pol sitely extensible sleeves adapted to -en'gage'iw opposite wal-lsof said compartment, anddevices for 'automatically extending said, sleeves .'in. Y.compensation for' the iv'ear thereof.. ,l

10. -An internal-combustion engine comprising a cylinder, intake and exhaust-ports therein, a piston, a compartment. between said ports and p iston, a member disposed in said compartment adapted to reciprocate in a plane' transverse to the axis vof said cylinder, and means for automatically moving said member into'and out of register with saidports, said means adapted to maintain said ineniber'out of" register with said ports during compression lof 'said charge, said member comprising oppositcly extensible sleeves adapted to engage oppo` site ivzills of said coiiilviartn'ieiit, and devices for automatically extending said sleeves in compensation'for thev wear thereof.

1l. An4 iiiternal-combiistion engine cour prising a cylinder. intake and exhaust-ports therein, a piston. a compartment betivceii said-ports and piston, a member disposed iii said compartment `adapted to reciprocate .2

a plane transverse to the axis of said cylinder, and means for automatically moving said member into and out of register vvithrI said compartment adapted to reciprocate in 'a plane transverse to the axis of said cylinf ber into and ont of register ivith saidports,

said parte, said member comirising extensi-- bles eeves having beveled anges adapted to engage opposite walls of said compartment, and devices for automatically extendv ing saidsleeves in compensation for the 70 wear osaid flan es. l

l l2. An interna combustion engine comprising a cylinder, intake and exhaust-ports therein, a -piston, ai compartment betweensaid ports and piston, avmember disposed in de r, and means for automatically` moving: said ,member into'and outfot register .with said ports, said means adapted to maintain said member out of register with said ports during .compression of said cli:'1rge,`"sa'id member .comprising extensible sleeves hav# ,ing beveled flanges adapted to engage oppol site walls of saidcompartment', and' devices for automatically extending said sleeves in compensation for the wear of said (langes. 13'. An internal-combustionf enginel comi prising a cylinder, intake and exhaustjports therein, a piston, a compartment' between i said ports and piston, al memberdisposed' in said'coinpartment ada ted-to containthe charge compressed by: said piston, 'and' means for automatically-moving sa'idmeinber into 'and out ofA register lwithl ports, said member bein v.closedaboye and' subsaid compartment/g* l Y,

,14g-Aa internal-combstion engine .coinf prising a cylinder, in alre'an'd e therein, aV piston; c "nip'f-rtnrentf,between saidports and piston, a member dispo in said compartment.adapted'to contai .saidimeans adapted to maintain said memf bei' ont'ot register with said' ports during compression of said charge, said member being closed above and substantially closed bel'on by opposite walls of said comparte. ment. l.

15. :Xn internal-combustion engincicoiiiprising a cylinder, intake and exhaust ports therein, a piston, a compartmentbetween la said ports and piston, a member disposed in said Compartment adapted to contain-tlie charge compressed by' said piston, and means for z-iutoniatically moving said menisaid member being closed above and substantalli closed below by opposite Wallsof said compartment and comprising extensible sleeves adapted to engage said walls, and devices for auton'iatically extending said sleeves in compensation for the wear thereof.

iti. An internal-combustion engine comprising a cylinder, intake and exhaust ports therein, a piston, a compartment betiiveen 130 said ports and piston, a member dispeedin said compartment adapted to contain the charge compressed by said piston, and means for automatically moving said member into and out of 're ster vvith said ports,`said means adapte to maintain said member out of registerwith saidl ports during compression ofisaid charge, said member being closed above and substantially-'closed vbelow by opposite walls of -saidcompartment and comprising extensible sleeves adapted to engage said wa'1ls,and devices for automaticallyv extending Isaid sleeves in compensation for the wear thereof.

1 17. An internalcombustion engine comrising a cylinder,`intake and exhaust ports t erein, a piston, a 'compartment between said ports and piston, a member disposed in said compartment adapted to contain the charge compressed by said piston, and means for automatically moving said member into and out of register with said ports, said member being closed above and substantially closed below by opposite walls of said compartment and comprising extensible sleeves having beveled flanges adapted to engage said walls, and devices for automatically extending said sleeves in compensation for the wear of said flanges.

18. An internal-combustion engine comprising a cylinder, intake and exhaust ports therein,` a lpiston, a compartment between vsaid ports and piston, a mein-l ber disposed in said compartment adapted to contain the charge compressed by said piston, and means for automatically moving said member into and out of register with said ports, said means adapted to maintain said member out of register with said ports during compression of said charge, said member being closed above and substantially closed belovv'by opposite walls of said compartment and `comprising extensible sleeves having beveled flanges adapted to engage said Walls, and devices for automatically extending said sleeves in compensation for the wear of said lflanges.

19. An internal-combustion engine comprising a cylinder, intake and exhaust ports therein, a piston, a compartment between said ports and piston, a member disposed in said compartment adapted to reciprocatein a plane transverse to the axis of said cylinder, and means for automatically moving said member into and out of register with said ports, said member being closed above and substantially closed below by opposite walls of said compartment and comprising extensible sleeves adapted to engage said walls, and devices for automatically extendc ing said sleeves' 'in compensation for the weer thereof. v

An internal-combustion engine combriefing a cylinder, intake and exhaust ports therein, a piston, a compartment between said ports and piston, a member disposed in said compartment adapted to reciprocate in a plane transverse to they `airis of said cyl inder, and means for automatically moving said member into and fout"-v of register with closed below-by opposite walls of sadcom- 754 partment and comprising extensible sleeves adapted to engage said walls, and devices for automatically extending said sleeves in compensation for the 'wear thereof.

21. An internal-combustion engine comprising a cylinder, intake and exhaust ports therein, a piston, a compartment between. said ports and piston, a member disposedy in said compartment adapted to reciprocate-in a plane transverse to the axis of said cyl-'35 inder, and means for automatically moving said member into and out of registerwith said ports, said member being closed above and substantially closed below by" oppositewalls of said compartment and comprising extensible sleeves havingv beveled flanges adapted to engage said walls, and devices for automatically extending said sleeves in compensation for the wear of said flanges.

22. An internal-combustion engine comprising a cylinder, intake and exhaust ports therein, a piston, a compartmentV between said ports and piston, a member disposed in said compartment adapted to reciprocate in a plane transverse to the axis of'said cyl- 10G inder, and means for automatically moving said member into and out of register with said ports, said means adapted to maintain said member out of register with said ports during compression of, said charge, said member being closed above and substantially closed below by opposite Walls of said compartment and comprising extensible sleeves having beveled flanges adapted to engage said walls, and devices for automatically extending said sleeves in compensation for the Wear of said flanges.

ARTHUR K. LANDSMANN.' FRITZ DIPPON.

Witnesses lV. KEANE SMALL, Lomss Knonean. 

